/*********************************************************************************
 * Software License Agreement (BSD License)
 * Copyright (c) 2012, Carlos D. Correa (info@ngraph.org)
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. Neither the name of netzen nor the
 *    names of its contributors may be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 *  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *********************************************************************************/
#ifndef LAYOUT_H
#define LAYOUT_H

#include "propertyBag.h"
#include "analysisTool.h"
class Graph;

/****************************************************************************
  Visual Node
*****************************************************************************/
class NodeInfo {
 public:
  float x, y;
  float vx, vy;
  float fx, fy;
};

/****************************************************************************
  Generic Layout
*****************************************************************************/
class Controller;

class Layout: public PropertyBag {
 protected:
  string creator;
  vector<NodeInfo> vnodes;
	Graph *graph0;
	Graph *graph;
  ProgressListener *listener;
  
 public:
  Controller *controller;

  Layout(const char*type, const char*name);
	
	void load();
	void save();
  void setGraph(Graph *g);
  void setCreator(string c);
  string getCreator();
  void getLocation(int nodeId, float &x, float &y);
  void setLocation(int nodeId, float x, float y);
  void getVelocity(int nodeId, float &vx, float &vy);
  void setVelocity(int nodeId, float vx, float vy);
  void getForce(int nodeId, float &fx, float &fy);
  void setForce(int nodeId, float fx, float fy);
  void addForce(int nodeId, float fx, float fy);
	// updates graph after applying NodeFilter and EdgeFilter
	void updateFilter();
  void updated();
  virtual void compute();
  virtual void update(string property);
  void setProgressListener(ProgressListener *listener) {
    this->listener = listener;
  }
	string PROPERTY(string property); 
	
};

Layout *createDefaultLayout(string name);

#endif
